Today’s cross-organizations are increasingly coordinating their capabilities in the quest of dynamically adaptable and thus highly competitive realistic services. Unfortunately, challenging problems are still to circumvent towards such objective, including the inherent rigidity, knowledge-scarce and lack of dependability of most WebServices standards (e.g. WSDL, BPEL and WS-CDL). We are contributing by putting forwards an integrated model-driven approach, with as main conceptual / deployment milestones and phases the followings. Firstly, at the domain-level, we are bringing profiled UML use-cases and class-diagrams to intuitively capture the structuring of service-driven applications. Secondly, to cope with any required knowledge and its agility, we are governing any business activity with event-driven business rules. Thirdly, towards verified conceptualization, we are shifting these UML-BRules-centric service requirements towards a tailored rule-centric service-oriented Petri net...